11237406148781 has 2 divisors, whose sum is σ = 11237406148782. Its totient is φ = 11237406148780.

The previous prime is 11237406148757. The next prime is 11237406148817. The reversal of 11237406148781 is 18784160473211.

Together with next prime (11237406148817) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11237311884100 + 94264681 = 3352210^2 + 9709^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11237406148781 is a prime.

It is a super-3 number, since 3×11237406148781³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11237406148711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5618703074390 + 5618703074391.

It is an arithmetic number, because the mean of its divisors is an integer number (5618703074391).

Almost surely, 2^{11237406148781} is an apocalyptic number.

It is an amenable number.

11237406148781 is a deficient number, since it is larger than the sum of its proper divisors (1).

11237406148781 is an equidigital number, since it uses as much as digits as its factorization.

11237406148781 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1806336, while the sum is 53.

The spelling of 11237406148781 in words is "eleven trillion, two hundred thirty-seven billion, four hundred six million, one hundred forty-eight thousand, seven hundred eighty-one".